<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
  用户名：<%=request.getParameter("username") %><br>
年龄：<%=request.getParameter("age") %><br>
性别：<%=request.getAttribute("sex") %><br>
Email：<%=request.getAttribute("email") %><br>

</body>
</html>